JPS6018579B2 - Conveyance equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transport facility suitable for transporting a plate-shaped object such as an automobile door.

For example, when automobile doors are transported on an assembly line in an automobile assembly factory, it is desirable that the doors be parallel to the transport direction in order to attach various parts and interior materials to the transported doors.

For this reason, in order to avoid collisions between the front and rear doors to be transported, a transport vehicle is used that has a longer overall length by connecting a pair of front and rear movable carts (trolleys, etc.) with a connecting means. On the other hand, in a simple transport/storage line from the assembly line to the next work station, for example, for thinning to the car body, transporting the door in the above manner is not necessary for the assembly work to the car body. A very long route is required for waiting storage, etc., which causes various inconveniences. Therefore, the present invention provides transport equipment that can switch the transport attitude of the transported object between a state parallel to the transport direction and a state perpendicular to the transport direction, and that can also expand and contract the overall length of the transport device according to this switching. This is what we intend to provide.

Preferred embodiments of the present invention will be described below based on illustrative drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a transport bag hawk, and reference numeral 2 designates means for supporting a transported object provided in the transport device 1. In FIG. The transport device 1 includes a pair of front and rear movable carts, that is, trolleys 4 and 5 guided by a free rail 3, and both of these trolleys. IJ-
A busher 9 guided by a power rail 7 and driven by a drive chain 8 connects a movable dog 10 of the front trolley 4.
By backing up the robot, it travels along a predetermined transport route. 11
12 is a drive release lever linked to the dog 10, and 12 is an operation smell for operating the drive release lever 11 of the subsequent conveyance bag counterfeit, and these are used when stopping the conveyance device 1 or storing it. This is a conventionally known method.

The support means 2 is a plate-shaped object 1 such as a car door.
3 is provided with a hanger 14 that supports the fish in a substantially vertical state, and the hanger 14 is suspended from the front trolley 4 so as to be rotatable around the vertical sea bream 15. As also shown in FIGS. 3 and 4, the connecting means 6 includes a pantograph link 16.
It consists of

This pantograph link 16 consists of four links 17 to 20 of equal length, and the bases of the links 17 and 18 are fixed to the front trolley 4 by the vertical shaft 15,
The links 19, 20 are attached to the rear trolley 5 by means of a vertical shaft 21.
The free ends of the links 17 and 19 and the free ends of the links 18 and 20 are connected to vertical pins 22 and 2, respectively.
It is pivotally connected by 3. 24 is means for locking the connecting means 6 in the extended state shown in FIGS. 1 and 3 and in the contracted state shown in FIG. 5, and is constructed as follows.

That is, the base of the link 17 is connected to a pair of upper and lower substrates 17a, 17.
b, and the base of the link 18 is connected to the substrates 17a, 17b.
The substrate 17 of the link 17 is provided with a substrate 18a sandwiched therebetween.
The middle part of a lock lever 26 is fixed to a and 17b by a vertical ratchet 25, and the recesses 28a and 28b, in which a lock pin 27 erected at the inner end of the lock lever 26 is fitted, are connected to the edges of the substrates 17a and 17b. In addition, the connecting means 6
The first recess 29 into which the lock pin 27 fits when the connecting means 6 is in the extended state, and the second recess 30 into which the lock pin 27 competes when the connecting means 6 is in the contracted state are connected to the substrate 18a of the link 18. It is located at the edge of the

A tension coil spring 31 biases the lock lever 26 in the direction of engaging the recesses 28a and 28b, and is interposed between the lock lever 26 and the base plate 18b.

Reference numeral 32 denotes a support means rotation operating lever, which extends sideways integrally from the hanger bracket 33.

34 is an interlocking means between the supporting means 2 and the connecting means 6.

That is, as shown in FIGS. 3 and 5, links 17, 1
The respective tips of the two links 37 and 38 which are pivotally attached to the middle part of the frame 8 by vertical pins 35 and 36 and one end of the interlocking link 39 are pivotally connected by one vertical pin 40 and the interlocking link 39
The end of the support means is pivotally connected to the middle part of the support means rotation operating lever 32 by a vertical pin 41. Due to this interlocking means 34, when the connecting means 6 is in the extended state as shown in FIG. When the connecting means 6 is in the contracted state as shown in FIG.
A second state is reached in which the supported object 13 is placed in a state perpendicular to the transport direction. 6 and 7 show the lock release device 42 and the contraction rotation operating device 43 provided in the conveyance path of the conveyance device 1. FIG.

This contraction/rotation operating device 43 is for contracting the connecting means 6 and changing the supporting means 2 to the second state shown in FIG. 5. The lock release device 42 is a lock that presses and rotates the lock lever 26 of the conveying device 1 stopped at the position shown in FIG. It consists of a release lever 44 and a cylinder/piston unit 46 that reciprocates the lever around a vertical pivot 45. A roller 47 that contacts the side surface of the lock lever 26 is pivoted to the tip of the lever 44 by a vertical pin. has been done. The contraction rotation operation diamond 43 includes a rotation lever 48 that presses and rotates the support means rotation operation lever 32 facing diagonally by approximately 90 degrees forward, and a rotation lever 48 that rotates the rotation lever 48 back and forth around a vertical support shaft 49. It consists of a cylinder/piston unit 50 that moves the lever 48, and a roller 51 that fits against the side surface of the lever bar 32 is pivotally attached to the tip of the lever 48 by a vertical pin. Mounting bases 52 and 53 are supported by the power rail 7 via a frame 54.

FIG. 8 shows a lock release device 55 and an extension/rotation operating device 56 provided in the transport path of the transport device 1. As shown in FIG.

This extension/rotation operating device 56 extends the continuous means 6 and changes the support means 2 to the first state shown in FIG. 3. The lock release device 55 is a lock that presses and rotates the lock lever 26 of the conveying device 1, which is stopped at the position shown in FIG. It consists of a release lever 57 and a cylinder/piston unit 59 for reciprocating the release lever 57 around a vertical pivot shaft 58, and a roller 60 that contacts the side surface of the lock lever 26 is attached to the tip of the lever 57. There is. The extension rotation operation device 56 is
a rotating sardine lever 61 that presses and rotates the support means rotation operation lever 32, which is oriented diagonally forward, backward by approximately 90 degrees;
It consists of a cylinder/piston unit 63 that reciprocates around a vertical pivot shaft 32, and a roller 64 that runs against the side of the lever bar 32 is pivotally attached to the tip of the lever 61 by a vertical pin. There is. Reference numerals 65 and 66 are mounting bases, and like the mounting bases 52 and 53 in FIG.
is supported via a frame 67.

Next, to explain how to use it and how it works, the transported object 13
In the work line for this, the connecting means 6 is in the extended state and the supporting means 2 is in the first position as shown in FIGS. 1 to 3.
state, thereby making the conveyed object 13 flat in the conveying direction, and the entire length of the conveying device 1 (both the front and rear trolleys 4, 5
(distance between the two) is set to a length that can prevent the front and rear conveyed objects from colliding with each other.

In this state, as shown in FIGS. 3 and 4, the lock pin 27 of the lock lever 26 is inserted into the recess 28 on the link 17 side.
a, 28b and the first recess 29 of the 18 legs of the links, fixing the two links 17, 18 to each other, the pantograph link 16 cannot expand or contract, and therefore both the front and rear trolleys 4 and 5 cannot move relative to each other in the far and near directions. Moreover, as a result of the links 17 and 18 being isolated from each other, the position of the pivot pin 40' between the links 37 and 38 is fixed. Therefore, the support means rotation operating lever 32 connected via the interlocking link 39 cannot rotate around the vertical axis 15 relative to the connection means 6, and the support means 2 maintains the first state. It's going to happen. Devices 42 and 43 shown in FIGS. 6 and 7 are provided at the point where the work line moves to the next transport/storage line. When the conveying device 1 reaches this point, the conveying device 1 is automatically stopped at the position shown in FIG. Press and rotate lock pin 26.
are removed from the recesses 28a, 28b, and 29 to make the pantograph link 16 extendable and retractable. Next, while the lock lever 26 is kept pressed by the lock release lever 44, the contraction rotation operation device 43 is operated and the support means rotation operation lever 32 is pressed and rotated forward by 97 degrees using the rotation lever 48. As a result, the pivot pin 40 between the links 37 and 38 is pulled forward via the interlocking link 39, and the links 17 and 18 of the pantograph link 16 are moved outward to the left and right around the vertical axis 15 via the links 37 and 38. It is pressed and rotated in the direction. Therefore, the pantograph link 16, that is, the connecting means 6 is contracted, and the rear trolley 5 is moved forward, and the distance between the front and rear trolleys 4, 5, that is, the total length of the conveying device 1 is shortened. On the other hand, the support means 2 and the ladder bar 3
2, it is directly rotated by 90 degrees about the vertical axis 15, resulting in the second state shown in FIG. Link 17
When the lock lever 26 is rotated forward, the lock lever 26 is disengaged from the lock release lever 44 and rotated inwardly by the spring 31, and the lock pin 27 comes into contact with the circular arc-shaped periphery of the link board 18a that is being rotated. When the second recess 3 of the link board 18a is connected, the lock pin 27 automatically engages the recesses 28a, 28b, and 30 as shown in FIG. and at the same time fix the support means 2 in the second state. Therefore, in the transport/storage line, the transported object 13 is orthogonal to the transport direction as shown in FIG. The object to be transported 13 can be transported and stored while the distance is reduced to a commensurate length.

When it is necessary to return the transported object 13 to the state shown in FIGS. 1 to 3, that is, the state parallel to the transport direction, before the transported object 13 enters the next work point or work line. As shown in FIG. 8, counterfeit counters 55 and 56 are provided immediately before the work point.

When the conveyance device 1 reaches a predetermined position corresponding to the devices 55 and 56, the device 1 is automatically stopped, and after stopping, the lock release device 55 is activated and its lock release lever 57 is activated.
Press and rotate the lock lever 26 to lock the lock pin 2.
7 is removed from the recesses 28a, 28b, and 30, and the pantograph link 16 is made freely expandable and contractable. Next, while keeping the lock lever 26 pressed with the lock release lever 57, the extension rotation operation device 56 is activated, and the rotation lever 61 is used to rotate the support means rotation operation lever 32, which is directed diagonally forward, by 90 degrees. Press and rotate backwards. As a result, completely opposite to the previous operation, the pantograph link 16, that is, the connecting means 6 is extended, and the rear trolley 5 is moved rearward, which corresponds to the distance between the front and rear trolleys 4, 5, that is, the total length of the transport bag straight 1. In particular, when the support means 2 are extended, the support means 2 are pivoted to the first position. As the link 17 pivots backward, the lock lever 26 separates from the lock release lever 57 and releases the spring 31.
automatically when the lock pin 27 abuts the arcuate periphery of the link board 18a that is being returned and corresponds to the first recess 29 of the link board 18a. As shown in FIGS. 3 and 4, the hook pin 27 is inserted into the recess 28a,
Pantograph link 16 as it is iron-coupled to 28b and 29.
That is, the connecting means 6 is fixed in the extended state, and at the same time the supporting means 2 is also fixed in the first state. Therefore, the transported object 13
The object to be transported 13 can be transported in a state in which the transport device 1 is parallel to the transport direction, and the entire length of the transport device 1, that is, the distance between the front and rear trolleys 4 and 5 is also extended to a corresponding length.

In the embodiment, the two front and rear trolleys 4 and 5 were connected by one connecting means 6, but three trolleys at the front end, rear end, and middle were used, and each was connected by a telescopic connecting means, and the middle trolley was connected to the middle trolley. A conveyed object support means may also be provided.
Furthermore, although the present invention has been implemented in the form of an overhead trolley conveyor, it may also be implemented in the form of a floor conveyor. The conveyance equipment of the present invention can be implemented as described above, and its feature is that the conveyance bag is directly connected to the front and rear movable carts that move along a fixed route so as to be movable toward and away from each other by a symmetrical pantograph link. , a locking means for locking the pantograph link in an extended state and a contracted state, and an object to be transported that is horizontally rotatable between a first state parallel to the moving direction and a second state perpendicular to the moving direction. A support means, a control lever for horizontally rotating the support means, and a control lever and the pantograph link that are arranged so that when the support means rotates from the second state to the first state, the pantograph link is extended and the support means is in the second state. interlocking means are provided for interlocking and connecting the pantograph links to each other so that the pantograph links contract when rotating from the first state to the first state; furthermore, a lock release device for unlocking the locking means is provided at an appropriate location in the travel path of the transport pupil; The present invention is characterized in that a rotation operating device is provided for rotating the support means from the first state to the second state or vice versa via an operating lever.

According to the conveyance equipment of the present invention, the conveyance posture of the object to be conveyed can be switched between a state parallel to the conveyance direction and a state perpendicular to the conveyance direction depending on the purpose of conveyance, etc., and furthermore, according to this switching, The total length of the transport bag can be automatically expanded or contracted to the minimum required length, allowing transportation work to be carried out without any hindrance in a convenient condition for storage, etc.

Moreover, according to the arrangement of the present invention, the telescopic connecting means for connecting the front and rear movable carts is a symmetrical pantograph link, so that the front and rear movable carts can be placed either close to each other or separated from each other. Even if the movable trolley is driven, the propulsive force applied to the driven movable trolley is transmitted to the driven movable trolley in the same direction as the moving direction through the pantograph link, so that the propulsive force applied to the driven movable trolley is transmitted diagonally to the driven movable trolley. Compared to the case where the information is transmitted, it is possible to make the secondary side moving cart run smoothly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the conveying device, FIG. 2 is a front view thereof, FIG. 3 is an enlarged cross-sectional plan view thereof, and FIG. 4 is taken along A-A in FIG. 3. 5 is a cross-sectional plan view of the main part with the connecting means retracted and the support means turned 90 degrees, and FIGS. 6 and 8 are respectively an enlarged cross-sectional view of the state of the conveying bag counterfeit. FIG. 7 is a front view of FIG. 6. DESCRIPTION OF SYMBOLS 1... Conveyance device, 2... Transported object support means, 3... Free rail, 4, 5... Trolley (moving cart), 6... ..... Telescoping connection means, 7 ..... power rail, 9 ..... pusher, 13 ..... conveyed object, -14 ..... hanger, 15, 21 ... Vertical axis, 16 ... Pantograph link, 17-20 ... Link, 24 ...
...Lock means, 26...Lock lever, 2
7...Lock pin, 28a, 28b, 29, 30...
... Lock pin iron fitting recess, 31 ... Tension coil spring, 31 ... Support means rotation operation lever, 33
...Hanger bracket, 34...Interlocking means,
37, 38...link, 39...exercise link, 42
, 55... Lock release device, 43...
Contraction rotation operating device, 44, 57... Lock release lever, 46, 50, 59, 63... Cylinder/piston unit, 48, 61... Rotating lever, 56...
...Extension and rotation operation device. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] 1. A transport device in which the front and rear movable carts moving along a fixed route are connected by symmetrical pantograph links so as to be able to move toward and away from each other, and a locking means for locking the pantograph links in the extended state and the contracted state, and 1st
A conveyed object support means provided to be horizontally rotatable between the state and a second state orthogonal to the movement direction, an operation lever for horizontally rotating the support means, and the operation lever and the pantograph link, providing interlocking means interlockingly connected to each other so that the pantograph link extends when the support means rotates from the second state to the first state and contracts when the support means rotates from the second state to the first state; Further, a lock release device for unlocking the lock means is provided at an appropriate location on the travel path of the conveying device, and a first lock release device is provided for unlocking the lock means, and a first lock release device is provided for unlocking the lock means.
A conveying facility equipped with a rotation operating device for rotating from one state to a second state or vice versa.